Principle Of Operation - GE Baker Hughes Masoneilan SVI FF Installation And Operation Manual

Principle of Operation

The SVI FF Electro- Pneumatic Digital Valve Positioner receives an electrical position setpoint
signal as depicted in Figure 2. The output pressure is amplified by a pneumatic relay that
drives the actuator. When the valve position agrees with the value called for by the position
setpoint input signal, the system stabilizes with no further movement of the actuator.
Figure 2 Block Diagram with I/P Converter and Pressure Sensor
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Masoneilan SVI FF Instruction Manual =